Pith Number

pith:2BHM4WVH

pith:2009:2BHM4WVHMLMKREW2YLCPDC4ZYC

not attested not anchored not stored refs pending

Innovative methods of correlation and orbit determination for space debris

A. Milani, A. Rossi, D. Farnocchia, G. Tommei

arxiv:0911.0149 v1 · 2009-11-01 · physics.space-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BHM4WVHMLMKREW2YLCPDC4ZYC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:11:00.953086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d04ece5aa762d8a892dac2c4f18b99c0970db876a912cad204306f57e51fffbc

Aliases

arxiv: 0911.0149 · arxiv_version: 0911.0149v1 · doi: 10.48550/arxiv.0911.0149 · pith_short_12: 2BHM4WVHMLMK · pith_short_16: 2BHM4WVHMLMKREW2 · pith_short_8: 2BHM4WVH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2BHM4WVHMLMKREW2YLCPDC4ZYC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d04ece5aa762d8a892dac2c4f18b99c0970db876a912cad204306f57e51fffbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eff7021619b33a3c377fa975be39dbb8e2ec48e4ea87785ceecd9696b49f90f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2009-11-01T10:36:48Z",
    "title_canon_sha256": "fffde2795c9be2f48977bf2140e8a9edd8a0522173cfa8f61fe5e56343154198"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0149",
    "kind": "arxiv",
    "version": 1
  }
}